I ordered from the used list on Amazon. I also ordered a 16GB but got 64GB device as the seller didn’t have the 16GB in.
I think stuff comes and goes. When I grabbed the link I saw one or two decent looking deals still in there. Ebay is also an option that may give you more upfront knowledge about version of OS. I had no idea what rev I was getting, but I ordered before I knew 4.5.5.2 existed and could lock me in.
I sort of doubt most resellers are going to charge these up and put them online to update for you, but knowing before buying is always better. Looking now, Ebay sellers offer more info than the Amazon sellers.
